I played a bit with the MVC preview 2. From an architectural point the new the building block is very much appreciated, and in many ways it reminded me of the Web Client Software Factory, I used in a project for a client some time ago. Lots of similarities here. But where WCSF depends on the huge enterprise library, the new MVC just references three assemblies.
Though it isn't supported in Visual Web Developer 2008 Express, it isn't very hard to get to work in this "home"-edition ( thanks). You can download my solution and use it as a start for your own projects. It implements a really basic web site, where the model simply generates fibonacchi numbers (yes, I've done too much F# lately), a view that displays the numbers and a demonstrates linking to views, and a controller that has an optional querystring parameter.